NCP1650_05 ONSEMI [ON Semiconductor], NCP1650_05 Datasheet - Page 12

• Manufacturer Part Number: NCP1650_05
• Description: Power Factor Controller
• Manufacturer: ONSEMI [ON Semiconductor]

(This circuit will not override the shutdown until the
Figure 26. Shutdown Override Circuit
NCP1650
Figure 28. External Shutdown Circuit
chip has achieved it’s initial enable state)
NCP1650
RESISTOR−DIODE NETWORK
FB/SD
6
FB/SD
6
V
2
ref
V
out
R
R
1
2
2N3904
R
R
2
2
0 V − Normal Operation
5 V − Shutdown
V
out
R
R
20 k
4.7 k
1
2
http://onsemi.com
NCP1650
BAS16LT1
12
0.33 mF
Figure 27. Shutdown Override Circuit
NCP1650
33 k
Figure 29. Soft−Start Circuit
MMBT2907AL
AC COMP
FB/SD
6
V
2
ref
ZENER DIODE
4.7 V
R
C
V
3
3
ref
2
3
V
NCP1650
out
R
R
1
2